Vulnerability Description
Linux kernel vhost since version 4.8 does not properly initialize memory in messages passed between virtual guests and the host operating system in the vhost/vhost.c:vhost_new_msg() function. This can allow local privileged users to read some kernel memory contents when reading from the /dev/vhost-net device file.
CVSS Score
LOW
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 4.8, < 4.18 |
| Debian | Debian Linux | 8.0 |
| Canonical | Ubuntu Linux | 16.04 |
| Redhat | Virtualization Host | 4.0 |
| Redhat | Enterprise Linux Desktop | 7.0 |
| Redhat | Enterprise Linux Server | 7.0 |
| Redhat | Enterprise Linux Workstation | 7.0 |
Related Weaknesses (CWE)
References
- https://access.redhat.com/errata/RHSA-2018:2948Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:3083Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:3096Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-1118Issue TrackingThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2018/07/msg00020.htmlMailing ListThird Party Advisory
- https://usn.ubuntu.com/3762-1/Third Party Advisory
- https://usn.ubuntu.com/3762-2/Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:2948Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:3083Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:3096Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-1118Issue TrackingThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2018/07/msg00020.htmlMailing ListThird Party Advisory
- https://usn.ubuntu.com/3762-1/Third Party Advisory
- https://usn.ubuntu.com/3762-2/Third Party Advisory
FAQ
What is CVE-2018-1118?
CVE-2018-1118 is a vulnerability with a CVSS score of 2.3 (LOW). Linux kernel vhost since version 4.8 does not properly initialize memory in messages passed between virtual guests and the host operating system in the vhost/vhost.c:vhost_new_msg() function. This can...
How severe is CVE-2018-1118?
CVE-2018-1118 has been rated LOW with a CVSS base score of 2.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2018-1118?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel, Debian Debian Linux, Canonical Ubuntu Linux, Redhat Virtualization Host, Redhat Enterprise Linux Desktop.